Warning: include(): Failed opening '/var/www/html/typo3/public/vendor/composer/../doctrine/dbal/lib/Doctrine/DBAL/Exception/ConnectionException.php' for inclusion (include_path='.:/usr/share/php') in /var/www/html/typo3/public/vendor/composer/ClassLoader.php on line 444

Warning: include(): Failed opening '/var/www/html/typo3/public/vendor/composer/../doctrine/dbal/lib/Doctrine/DBAL/Exception/ConnectionException.php' for inclusion (include_path='.:/usr/share/php') in /var/www/html/typo3/public/vendor/composer/ClassLoader.php on line 444

Warning: Invalid argument supplied for foreach() in /var/www/html/typo3/public/vendor/typo3/class-alias-loader/src/ClassAliasLoader.php on line 175

Fatal error: Uncaught Error: Class 'Doctrine\DBAL\Exception\ConnectionException' not found in /var/www/html/typo3/public/vendor/doctrine/dbal/lib/Doctrine/DBAL/Driver/AbstractMySQLDriver.php:93 Stack trace: #0 /var/www/html/typo3/public/vendor/doctrine/dbal/lib/Doctrine/DBAL/DBALException.php(166): Doctrine\DBAL\Driver\AbstractMySQLDriver->convertException('An exception oc...', Object(Doctrine\DBAL\Driver\Mysqli\MysqliException)) #1 /var/www/html/typo3/public/vendor/doctrine/dbal/lib/Doctrine/DBAL/DBALException.php(154): Doctrine\DBAL\DBALException::wrapException(Object(Doctrine\DBAL\Driver\Mysqli\Driver), Object(Doctrine\DBAL\Driver\Mysqli\MysqliException), 'An exception oc...') #2 /var/www/html/typo3/public/vendor/doctrine/dbal/lib/Doctrine/DBAL/Driver/Mysqli/Driver.php(18): Doctrine\DBAL\DBALException::driverException(Object(Doctrine\DBAL\Driver\Mysqli\Driver), Object(Doctrine\DBAL\Driver\Mysqli\MysqliException)) #3 /var/www/html/typo3/public/vendor/doctrine/dbal/lib/Doctrine/DBAL/Connection.php(362): Doctrine\DBAL\Dri in /var/www/html/typo3/public/vendor/doctrine/dbal/lib/Doctrine/DBAL/Driver/AbstractMySQLDriver.php on line 93